Feature:1. This lens mount adapter is mainly used for connecting the2. It is able to Focus Infinity.3. Completely manual control, manual focus and manual exposure.4. There is no electrical connection on the ring so diaphragm control of the lens is set manually.5. Equipped with lock \u0026 stop pin.6. This lens mount adapter is mainly used for connecting the M42 mount lens to cameras with 4/3 Mount.7. This lens mount adapter is mainly used for connecting the \u0027M42 mount lens\u0027 to \u0027cameras with 4/3 Mount\u0027.Specification:Features:This lens mount adapter is mainly used for connecting the "M42 mount lens" to "cameras with Micro 4/3 Mount".It is able to Focus Infinity. Completely manual control, manual focus and manual exposure.There is no electrical connection on the ring so diaphragm control of the lens is set manually.Equipped with lock & stop pin.Suit forM42 mount lenses, such as Zeiss, Pentax, Praktica, Mamiya, Zenit.Micro 4/3 Mount DSLR camera.Such as Olympus EP1, EP2 /Panasonic DMC-G1, DMC-GH1, DMC-GF, etc..Specifications:Material: MetalCompatible lens: for M42 Mount lens Compatible cameras: for Micro 4/3 Mount cameraFront mount: for M42 MountRear mount: for Micro 4/3 MountItem size: 6.0 * 6.0 * 3.0cm / 2.4 * 2.4 * 1.2inItem weight: 60g / 2.14ozPackage size: 7.0 * 7.0 * 3.5cm / 2.8 * 2.8 * 1.4inPackage weight: 67g / 2.37ozPackage List:1 * M42 Mount Lens to Micro 4/3 Mount Adapter Package List:1 * M42 Mount Lens to Micro 4/3 Mount Adapter